卵石地层浅埋暗挖地铁隧道下穿楼房的保护措施及相关问题

北京地铁9号线六里桥东站～六里桥站区间左线隧道下穿莲花池长途客运站4层办公楼,下穿段为浅埋暗挖法单线马蹄形标准区间隧道,所处地层为卵石地层,现况地下水位于隧道底以下,下穿期间客运站正常运营。本文对地铁隧道区间下穿楼房的保护方案及相关问题进行分析和总结。

The Protection Measures and Relevant Problems of a Shallow Metro Tunnel under Crossing the Building in the Cobble Ground

The section tunnel between the Liuliqiaodong Station and the Liuliqiao Station of Beijing Metro Line 9, under crossing a four-storey building of Lianhuachi Long-distance Passenger Station, is the horseshoe shape of stan- dard tunnel in the cobble ground. The groundwater level of recent years is under the bottom of the tunnel and the pas- senger station is normally operating during the tunnel construction. In this paper, the summary of special protection plan and analysis of relevant problems are introduced.